題解cin cout(c++)

#include<bits/stdc++.h>
using namespace std;
long long x,y,z,ans;
int main()
{
	cin>>x>>y>>z;
	if(x==0)
	{
		cout<<1;
		return 0;
	}
	ans=2*y+x+1;
	if(ans>=5)
		ans+=5*z;
	cout<<ans;
	return 0;
}

注意 ans=2*y+x; 还要+1不然他还会买